This is a private chat app based on Flask-SocketIO, vanilla JS, Bootstrap, and AWS DynamoDB (RDS Postgres integration also available). An invite token is required to join.
TODO: rebuild client using React, and React Native for mobile.
Heroku requires requirements.txt to recognize the Python app. It also needs runtime.txt to specify a Python version, or it uses default version 3.6.8.
For AWS Elastic Beanstalk, must set environment variable PORT to make it work.
Use eb CLI to init, create the environment. Use eb deploy to deploy.
Flask-socketio has dependency issue with eventlet on Python 3.7+, so switched to python 3.6.8 eventlet/eventlet#526
To use Python 3.6.8
- Heroku: set
python-3.6.8inruntime.txt - EB: Pick the platform at environment creation time. Or use the environment home page to change the platform (big button on the right).